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Protocol Authentication - Quiz

Each question is worth one point. Select the best answer or answers for each question.
1. Examples of protocols that authenticate dial up links include Please select all the correct answers.
  A. PPTP
  B. CHAP
  C. MS-CHAP
  D. L2TP

2. Extensible Authentication Protocol (EAP) is Please select the best answer.
  A. An encryption algorithm that protects data during its entire transit over the wire.
  B. A hash algorithm that creates a message digest in order to confirm authenticity.
  C. A protocol that allows for customized methods of authentication such as smart cards and biometric devices such a fingerprint readers and retinal scanners.
  D. An application layer Public Key Infrastructure based protocol used to secure data transmitted to and from commercial Web sites.
3. What are two major differences between PPTP and L2TP? Please select all the correct answers.
  A. PPTP only works on an IP-based internetwork. L2TP is designed to work on alternative internetwork layer protocols such as ATM, X.25, and Frame Relay, although its only implementation is for IP networks at present.
  B. PPTP works on Microsoft Windows networks, but L2TP requires Cisco Routers.
  C. L2TP supports encrypted tunnels using encryption protocols such as IPSec, but PPTP does not support data encryption within PPTP tunnels.
  D. L2TP supports header compression, which PPTP does not.